Quickstart

Use the familiar OpenAI SDK to access 100+ LLM models across OpenAI, Anthropic, Google, and more with automatic logging, observability, and fallbacks built in.

Set up your account

Sign up for free and complete the onboarding flow
Generate your Planck API key at API Keys

Send your first request

Planck’s AI Gateway is an OpenAI-compatible, unified API with access to 100+ models, including OpenAI, Anthropic, Vertex, Groq, and more.

TypeScript
Python
cURL

import { OpenAI } from "openai";

const client = new OpenAI({
  baseURL: "https://api.inquantum.ai",
  apiKey: process.env.PLANCK_API_KEY,
});

const response = await client.chat.completions.create({
  model: "gpt-4o-mini", // Or 100+ other models
  messages: [{ role: "user", content: "Hello, world!" }],
});

from openai import OpenAI

client = OpenAI(
    base_url="https://api.inquantum.ai",
    api_key=os.getenv("PLANCK_API_KEY")
)

response = client.chat.completions.create(
    model="gpt-4o-mini",
    messages=[{"role": "user", "content": "Hello, world!"}]
)

curl https://api.inquantum.ai/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $PLANCK_API_KEY" \
  -d '{
    "model": "gpt-4o-mini",
    "messages": [
      { "role": "user", "content": "Hello, world!" }
    ]
  }'

Once you run this code, you’ll see your request appear in the Requests tab within seconds.

How do credits work?

Instead of managing API keys for each provider (OpenAI, Anthropic, Google, etc.), Planck maintains the keys for you. You simply add credits to your account, and we handle the rest.Benefits:

0% markup - Pay exactly what providers charge, no hidden fees
No need to sign up for multiple LLM providers
Switch between 100+ models by just changing the model name
Automatic fallbacks if a provider is down
Unified billing across all providers

Want more control? You can bring your own provider keys instead.

What’s Next?

Now that data is flowing, explore what Planck can do for you:

Explore The Platform

Understand how Planck solves common LLM development challenges.

Questions?

Although we designed the docs to be as self-serving as possible, you are welcome to contact help@inquantum.ai with any questions or feedback you have.

Getting Started

AI Gateway

Observability & Analytics

Prompt Management

Async Logging

Custom Logs

What’s Next?

Explore The Platform

Questions?

​What’s Next?

Explore The Platform

​Questions?

What’s Next?

Questions?